... , 9-16V, 2.auto headlight, high efficiency, high reliability 2011best sell Newest HID with slim ballast Features & Function2011 newest HID 1 ... ) High efficiency, high reliability and low power consumption; 3) vacuumized made, better moistureproof; Super slim, easier carriage; Nice designed, attractive outlook ... d1r d2c d2s d2r d4c d4s d4r 880 881 2011best sell Newest HID with slim ballast